Results 1 — 24 of 101 · Get Free Shipping on MERV 13 Qualified Air Filter Products or Shop Online Pick Up in Store Today at Heating, Ventilation %26 Cooling. MERV ratings range from 1 to 20; the higher the number, the higher the percentage of contaminants blocked by the filter. Before purchasing a MERV 16 rated air filter, make sure your unit is designed to withstand this level of filtration. Improper use of a MERV 16 filter can greatly reduce the life of your unit and result in additional maintenance costs.
MERV ratings of 8 are a popular choice for eliminating allergens, but filters rated up to 15 are common for home use.